Golf ball



J. HUNT GOLF BALL Filed April 2, 1924 Patented Dec. 2, 1924.

UNTED STATES JARVIS HUNT, OF

GOLF

Application filed April 2,

To all whom t may concern.'

Be it known that I, Janvisv HUNT, a citizen of the United Sta-tes, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Golf Balls, of which the following is a specification.

This invention relates to golf balls, and has for its principal object 'to provide an imp-roved arrangement of confor-mations on the surface thereof, whereby the frictional air resistance during flight produces rotation of the ball on a predetermined axis, and at the same time the proper balance and rolling properties of the ball are preserved to insure the. desire accuracy on the putting green. The invention may best be understood from the drawings in which,

Figure l shows one form in which it may be embodied.

Fiigure 2 is a view taken from another angle, but with lines drawn on the surface to indicate the linear arrangement of projections with respect to the axis and equator of the sphere.

Figure 3 is an enlarged transverse section of one of the projections.

Figure 4 is a plan view of the projection shown in Figure 3. y

As will be seen from the figures of the drawing, my invention consists in providing an improved form and arrangement of proj ections 10, 10 designed individually to have maximum efficiency in coacting with the air and being arranged on the surface of the ball so that the aggregate effect produces the desired axial rotation. One of these projections is illustrated in enlarged sect-ion in Figure 3, and in plan view in Figure 4 which show it is elongated in form, being rounded in its larger end, and tapering toward the other end. This shape is such as to offer minimum head resistance to the air when its blunt end is pointed in the direction of flight, being substantially what is commonly known as stream line. Accordingly, I arrange certain of these projections with their longitudinal axes extending on lines 10a, 10a curved from adjacent one pole 11, about the sides of the ball toward the opposite pole l2. Each of the series 10, 10 may terminate in any suitable manner near the poles, as for instance, at end Zones 13, 13 of restricted area. These end Zones may be used for the usual marks of identification such as trademarks or the like.

reussi CHICAGO, ILLINOIS.

BALL.

jectons are disposed are arranged at an oblique angle to any meridian, that is to say, a line formed by the intersection of an axial plane with the surface of the sphere, as illustrated in Figure 2.

A golf ball constructed in accordance with my invention is capable of being controlled in its flight to a much greater degree than ordinary balls, owing to the contour of the surface as described. The great frictional resistance of the air during flight cooperates with the projections to give the ball a twisting or rotational movement about its normal axis. The peculiar shape of the projections affords maximum efficiency for this purpose. Axial rotation of the ball in turn produces a tendency to bring the axis into line of flight, so as to present the least resistance to the air, and thus promote accuracy in flight without pulling or slicing. This is accomp-lished in the present invention without affecting the balance of the ball by the interposition of shorter series of projections between longer series, as described. This arrangement also gives greater efficiency in producing axial rotation of the ball during flight, due to the increased number of series of projections at the equator, where they are most effective for the purpose described.

I claiml as my invention:

1. A golf ball provided with a plurality of stream line projections with their longitudinal axes arranged in continuous lines extending between opposite poles and at angle inclined to the meridian lines thereof.

2. A golf ball provided with a plurality of series of linear conformations extending between opposite poles of the ball and inclined to the meridian lines thereof, said series being of varying lengths and more numerous at the equator than near the poles, whereby said conformations are distributed with substantial uniformity over the surface of the ball.

3. A golf ball provided with a plurality of series of linear conformations of substantially uniform size extending between opposite poles; ot the ball and inclined to the meridian lines thereof7 Said series being o't varying; lengths and inore numerous at 'the equator than near the. poles, whereby sziid Qonformutions are distributed with substantial uniformity over the surface ot the ball.

4. A golf ball provided With n piurlit)v of series of elongated stream line projections with their longitudinal axes extending` he- Lio tween opposite poles ot' the bull and i'nriiuetl to the meridian lines thereof, said series being' of varying' lengths und more numerous at the equator than near the polesl` whereby said projections are distributed with Substantial uniformity over the surface of the bull.

Signed at Chicago, Illinois, this 29th day od" March 1924-.

JARVIS HUNT. 

